Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net Income	$ 3,113	$ 2,939
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	550	825
Depreciation and amortization	417	435
Net amortization on securities	1,512	958
Amortization of core deposit intangible	16	18
Share based compensation expense	338	366
Net securities gains	(338)	(272)
Increase in accrued interest receivable	(131)	(830)
(Increase) decrease in other assets	(1,268)	42
(Decrease) increase in accrued expenses and other liabilities	(202)	382
Net cash provided by operating activities	4,007	4,863
Cash flows from investing activities:
Purchases of securities available for sale	(26,033)	(133,659)
Purchases of securities, restricted	(59)	(360)
Purchases of securities held to maturity		(17,168)
Proceeds from sales of securities available for sale	46,553	3,344
Maturities, calls and principal payments of securities available for sale	51,395	63,660
Maturities, calls and principal payments of securities held to maturity	13,932	8,605
Net increase in loans	(63,715)	(29,087)
Purchase of premises and equipment	(1,570)	(692)
Net cash provided by (used in) investing activities	20,503	(105,357)
Cash flows from financing activities:
Net (decrease) increase in deposits	(35,121)	14,297
Net (decrease) increase in federal funds purchased and FHLB overnight borrowings	(15,500)	36,000
Net increase (decrease) in repurchase agreements	431	(5,359)
Net proceeds from issuance of common stock		2,088
Repurchase of surrendered stock from vesting of restricted stock awards	(149)	(88)
Excess tax expense from share based compensation	(9)	(10)
Cash dividends paid		(1,923)
Net cash (used in) provided by financing activities	(50,348)	45,005
Net decrease in cash and cash equivalents	(25,838)	(55,489)
Cash and cash equivalents at beginning of period	51,249	79,546
Cash and cash equivalents at end of period	25,411	24,057
Cash paid for:
Interest	1,792	1,962
Income tax	190	90
Noncash investing and financing activities:
Securities which settled in the subsequent period		$ 894